Home / 459,089.70-688,634.55-143,546.10

Finding the Fourth Proportional to 459,089.70, 688,634.55 and 143,546.10

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Solution

The fourth proportional to 459,089.70, 688,634.55 and 143,546.10 is: 215,319.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,089.70 : 688,634.55 = 143,546.10 : x
  2. Step 2: Convert to fraction form
    459,089.70/688,634.55 = 143,546.10/x
  3. Step 3: Cross multiply
    459,089.70x = 688,634.55 × 143,546.10
  4. Step 4: Simplify right side
    459,089.70x = 98,850,803,977.76
  5. Step 5: Solve for x
    x = 98,850,803,977.76/459,089.70
  6. Step 6: Final answer
    x = 215,319.15

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.